The theory runs along the lines of weaving as many of the words into your vocabulary as often as possible. Apparently, this was not lost on the major advertising agencies across the world, as we notice all 12 words appearing in all types of media. It has also been pointed out to me that you can build a great spam filter using exactly the same words.

Those are definitely the most powerful meanings, rendered in English - but those same concepts probably mean just as much to people in a different language. The meanings have power in the mind, but the words don't necessarily have power within in the language.

For strength within the language, I would have picked (in no particular order):

he/she (the concept of a sentient entity aside from 'I' (another special instance of 'it'; there really should be single word for he/she))

believe (the 'it' contained in the mind of a sentient (and not necessarily in the real world); allows you to say "I believe it does it, and he believes it has it, and it is not" (i.e., we're both wrong))

but (thought and speech facilitator; like 'and' but indicates that a different type of thought follows; allows you to say "I believe it does it, and he believes it has it, but it is not")

or (thought and speech facilitator; allows you to express 'if w, z. if x, z. if y, z' as 'if w, x, or y, z')

These are the basic concepts. Almost every other word in English is a further qualification of 'it'.